CN104359366B - Method for monitoring relative positions in horizontal large vessel flange butt-joint procedures - Google Patents
Method for monitoring relative positions in horizontal large vessel flange butt-joint procedures Download PDFInfo
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- CN104359366B CN104359366B CN201410636489.1A CN201410636489A CN104359366B CN 104359366 B CN104359366 B CN 104359366B CN 201410636489 A CN201410636489 A CN 201410636489A CN 104359366 B CN104359366 B CN 104359366B
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- touch
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- dial gauge
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Abstract
The invention provides a method and a device for monitoring relative positions in horizontal large vessel flange butt-joint procedures. The device comprises a measuring portion and a recording portion. The measuring portion comprises a X-axis and Y-axis positioning portion and a Z-axis positioning portion, the X-axis and Y-axis positioning portion can sense the positions of contact points of touch screens by the aid of sharp and thin contactors of capacitance dial gauges, communication parameter setting and data analysis and conversion functions can be implemented by the aid of additional circuits, and accordingly X-axis and Y-axis coordinates of the positions of the contact points can be instantly determined and displayed; the Z-axis positioning portion can directly utilize measuring and displaying functions of the capacitance dial gauges to instantly position and display Z axes. The method and the device have the advantages that the method and the device are combined with each other, so that X-axis, Y-axis and Z-axis coordinates can be instantly determined and displayed, measurement can be facilitated, the method and the device are proper in precision and have definite practical significance in improving large flange butt-joint mounting quality and sealing performance, and requirements can be met.
Description
Technical field
The present invention relates to relative position measurement method and apparatus when two vertical parallel end faces are close, more particularly, to horizontal
The monitoring method of container large flange docking operation relative position and device, belong to two vertical parallel end faces position mechanical value measurings
Category.
Background technology
The horizontal vessel large flange of the present invention refers to that flange diameter is significantly greater than aduit height, is not easy to operating personnel direct
Observe the horizontal vessel flange of docking operation, easily and the vessel flange accidentally injured may be produced to rubber ring in docking operation.
Three coordinate measuring machine is one of existing mensure device for component of machine or structure, and this device can be one
In individual hexahedral spatial dimension, performance geometry, length and circumference graduation etc., it is also called three-coordinates measuring machine or three times
Unit, is to be surveyed in three or more than three coordinates of x, y, z (coordinate is traditionally also can be regarded as in a rotating shaft of circular turntable)
The general dimensional measuring instrument of amount, is mainly used in measuring surfaces of complex shape overall size, such as turbine blade, kinescope screen
Overall size, the aperture in each hole of box parts and the coordinate dimensions etc. such as curtain, cam and car, also often supporting with machining center, become
A part for flexible manufacturing system.
By automaticity, three coordinate measuring machine (abbreviation measuring machine) is generally divided into manual, automatic and computer digit control
Three kinds of system.Manual measuring machine is by being accomplished manually the whole measurement process to tested length.Automatic measurement machine is automatically performed by gauge head
To the aiming of tested length positioning, by being accomplished manually other measurement process.Computer numerical control (CNC) measuring machine removes to have and automatically takes aim at
The function of certainly position is outer all to be measured and calculating process moreover it is possible to be automatically performed according to good program prepared in advance.
Measuring machine can be divided into coordinate measuring machine and universal measuring machine two class by purposes again.The former is the 1950's mid-term
Occur, be usually used in measuring certain type of workpiece, measurement efficiency is higher, be suitable for using in workshop.This kind of measuring machine specification
A lot, measurement range is up to 10000 × 1600 × 1000 millimeters or bigger.Universal measuring machine is to send out on the basis of jig boring machine
Open up and come, certainty of measurement is high, and single coordinate precision is up to 2 microns/more than 1000 millimeters.It carries different gauge heads and more annex
As numerical monitor circular dividing table, the rotary table with precision bearing system etc., measure function more, suitably in measuring room use.
Main pertinent literature mainly has following 4:
[1] super large flange is from the research of state searching machining technology, Cui Ke, Harbin Institute of Technology's Master of engineering academic dissertation, and 1
Introduction, in July, 2007, at present in terms of " from state searching machining technology " processes super large component application at most and more ripe be profit
Process maglev guide way girder with " from state searching machining technology ".Shanghai Communications University, Tongji University, Xi'an Communications University are at this
Aspect has been achieved for certain achievement in research [39-45].The novel track beam of magnetic suspension train is come generation with armored concrete
Manufacture beam body for steel or other metal materials, lead to the deformation of clamping and the roughness of locating surface all to substantially exceed metal material,
Cause positioning invalid it is impossible to complete processing request.The weight of the huge volume of track girder and up to a hundred tons, all makes traditional determining simultaneously
Method for position is no longer appropriate for.Record on track girder characteristic point using the coordinate measuring machine on Digit Control Machine Tool in lathe coordinate system
Position, these characteristic points are fitted with theory characteristic point, calculate physical location in lathe coordinate system for the workpiece, make
Centering need not be carried out to workpiece during processing.
The document adopt Digit Control Machine Tool on coordinate measuring machine technology transplant to super-large component three-dimensional measurement, three
The technological core of coordinate measuring system technology is optical grating ruler measurement technology, this technology and the present invention no something in common.
[2] Liu Xiaodong. Modern Manufacturing Technology research institute of Tongji University Shanghai 200092；Determine numerical control using laser tracker
Lathe spatial relation [j]. automated manufacturing .2004 (08), the mutual alignment being mainly to determine between two lathes is closed
System is it is therefore an objective to process a workpiece using two lathes simultaneously.First by laser tracker, discretization is carried out to two lathes
Measurement, then sets up the respective coordinate system of two lathes according to measurement data, and determines that the mutual alignment between two lathes is closed
System, finally calculates due to setting up the error of coordinate that new coordinate system leads to.
The method using determining Digit Control Machine Tool spatial relation using laser tracker for the document, is laser ranging technique
Application on three-dimensional coordinates measurement, with the present invention no something in common.
[3] Xie Zexiao, China Mechanical Engineering 08 phase in 2008, the light pen three-dimensional coordinates measurement system based on binocular stereo vision
, it is proposed that a kind of light pen coordinate measuring machine based on Binocular Stereo Vision System, this system is based on contact type measurement for system
Mode, using the light pen with spot light as contact measurement instrument.First, high-precision demarcation has been carried out to video camera, established
Binocular Stereo Vision System model；Secondly, the two dimensional image being shot by left and right cameras, the point in two width images is carried out
Join, obtain the led spot center three-dimensional coordinate on light pen；Then, a series of three-dimensional coordinate matching by led spot center is straight
Line, obtains the three-dimensional coordinate of nib from straight line.Test result indicate that, the method achieve the contact type measurement to object, tool
Have the advantages that structure is simple, low cost, and there is higher precision.
The document uses image procossing and recognition methods, the method and the present invention no something in common.
[4] Zhang Xiaofang, the research of light pen no guide rail coordinate measuring machine, aviation Precision Manufacturing Technology, 2003 01
Phase proposes a kind of non-orthogonal system (being commonly called as mechanical guide rail), realizes three coordinates using the Position-Sensitive Detector psd imaging that crosses
Measurement, its measurement head is a pen carrying spot light, therefore claims " light pen no guide rail coordinate measuring machine ".Article elaborates
The structural design theory of this system and measuring principle.
Being crossed using Position-Sensitive Detector psd of document employing is imaged the technology usually general realizing three-dimensional coordinates measurement
Laser beam is irradiated to testee, reflected resolve through mathematics to Position-Sensitive Detector psd, obtain three-dimensional coordinates measurement.Should
Technology and the present invention no something in common.
Patents have following three:
The Chinese patent of Publication No. cn103712572a, discloses the contour of object that a kind of structure light source is combined with camera
Three-dimensional coordinate measurement device；The Chinese patent of Publication No. cn103712557a, discloses a kind of swashing towards super-huge gear
Light follows the tracks of multi-court position localization method；The Chinese patent of Publication No. cn2348348, discloses a kind of major diameter object space three-dimensional
Coordinate measuring set.
Related three patents are and are developed based on laser ranging technique or optical imagery with technology of identification, with
Invention with touch-screen with numeral dial gauge be used in combination realize space contact point three-dimensional position measuring technology no technology related
Property.
Following preliminary conclusion can be obtained by document above and patent application:
(1) touch-screen, generally as the input of instrument, is easy to operate, is substituted the instrument controlling button (face of traditional sense
Plate).Itself there is certain touch location precision (0.2～1mm about), but touch-screen is used simultaneously as position sensor
There is not been reported to realize contact position measuring；
(2) capacitance-grid type digital dial gauge has been mature technology for linear measure longimetry, its precision up to 0.01mm, but by numeral
Dial gauge contact contacts measuring point with touch screen combination as three-dimensional measurement technology and as slider still as touch-screen
Have no report；
(3) currently it is common to Digit Control Machine Tool cutter head position three-dimensional measurement and typically adopts three coordinate grating measuring technology, and pacify
Be contained in inside machine tool guideway, structure relative complex it is difficult to realize flange in the case of not affecting this body structure of flange to taking over
The measurement of journey relative position.And its core technology and this patent no something in common.
(4) the three-dimensional measurement technical requirements being developed based on laser ranging technique or optical imagery and technology of identification are in institute
There is stable intervisibility thang-kng passage, this moves closer to and be cannot during finally closing up flange docking in the region of measurement
Realize.
Content of the invention
Lack effective monitoring device in order to solve horizontal large flange docking operation, the technology that merging precision is difficult to hold is asked
Topic, the present invention provides a kind of monitoring method of horizontal vessel large flange docking operation relative position and device.
The technical solution of the present invention is as follows:
A kind of monitoring of structures of horizontal vessel large flange docking operation relative position, it is characterized in that including at least
One digital dial gauge, at least one touch-screen, computer, the digitlization for realizing variable being arranged in touch-screen and no
The additional circuit boards of line transmission, the antenna being separately mounted on each digital dial gauge and each touch-screen, be separately mounted to every
The wireless module being communicated with antenna in individual numeral dial gauge and each touch-screen,
Described touch-screen is arranged on one of flange of two horizontal vessel large flange of pre- docking and and flange face
Parallel, described numeral dial gauge is arranged on the another one horizontal vessel large flange of pre- docking, and described numeral dial gauge includes
Expansion link, described expansion link is just to touch-screen；Described touch-screen and digital dial gauge are respectively by the wireless module of itself installation
And antenna is connected with computer.
Above-mentioned numeral dial gauge and touch-screen are respectively placed on the outer-diameter circular arc face of horizontal vessel large flange.
Above-mentioned touch-screen is arranged on mounting flange, and described numeral dial gauge is fixed on rotary flange.
Above-mentioned touch-screen is respectively 3 with the quantity of digital dial gauge, be respectively placed in surface, lower left, lower right and
Circumference uniform distribution.
Above-mentioned touch-screen is all fixedly connected with horizontal vessel large flange by Magnetic gauge stand or screw with digital dial gauge.
A kind of monitoring method of horizontal vessel large flange docking operation relative position, it is characterized in that
Touch-screen is combined the three-dimensional position of measurement space contact point by described monitoring method with digital dial gauge, wherein tactile
Touch screen and serve as the positioning that position sensor realizes contact point x-axis and y-axis, digital dial gauge realizes contact point z-axis positioning, concrete prison
Survey step as follows:
1) measuring apparatus are installed
On one of flange of two horizontal vessel large flange of pre- docking, one or more touch-screens are installed, every
On individual touch-screen, wireless module and antenna are installed,
Digital dial gauge is installed in relative with touch-screen position on another one horizontal vessel large flange, in digital percentage
On table, wireless module and antenna are installed, and by the expansion link of digital dial gauge just to touch-screen；
2) measure
2.1) adjust the contact that one of two horizontal vessel large flange flange makes the expansion link of digital dial gauge
Touch-screen, after touch-screen is touched, will touch plan-position x a little, y-coordinate after digital conversion through by wireless module and sky
Line transmits and shows to computer disposal,
2.2) after digital dial gauge touches touch-screen, by the axial location z coordinate of touch points after digital conversion through by
Wireless module and antenna transmission show to computer disposal.
Above-mentioned monitoring method, also includes, according to touching plan-position coordinate a little and axial location coordinate, adjusting two
The position of horizontal vessel large flange and angle, until the two fully aligned step.
Above-mentioned numeral dial gauge and touch-screen are respectively placed on the outer-diameter circular arc face of horizontal vessel large flange；Described touch-screen
It is arranged on mounting flange, described numeral dial gauge is fixed on rotary flange.
Above-mentioned touch-screen is respectively 3 with the quantity of digital dial gauge, be respectively placed in surface, lower left, lower right and
Circumference uniform distribution.
Above-mentioned touch-screen is all fixedly connected with horizontal vessel large flange by Magnetic gauge stand or screw with digital dial gauge.This
Compared with prior art, advantage is for invention:
1st, touch-screen is used in combination, with digital dial gauge, the three-dimensional position measuring technology realizing space contact point by the present invention
With device, structure is relatively succinct, relative inexpensiveness, can be with quick and convenient practical flange docking operation relative position of realizing
Measurement.
2nd, the present invention, as the monitoring technology of relative position in horizontal vessel large flange docking operation, measures convenient and precision
Suitably, disclosure satisfy that demand, for raising large flange abutting joint quality and sealing property, there is clear and definite realistic meaning, adopt
Capacitance-grid type digital dial gauge and the technical thought of touch screen technology combination, can preferably realize its technical goal.
3rd, applied range of the present invention, can be generalized to the relative position measurement of other two vertical parallel end faces, such as electricity
Stand, the level of the large parts such as water conservancy, bridge assembles mating operation, by the three-dimensional coordinate measurement value of 3-4 point position, permissible
Be given such as: the space of the two vertical parallel end faces such as (two flanges) axiality (x, y), angle (depth of parallelism), corner, gap (z)
Three-dimensional relative position relation.
4th, the present invention is to realizing flange and accurately dock having played good action.Through using Mechanical Method correlation calibration, aligning survey
Accuracy of measurement error≤± 0.42mm, gap and horizontal survey trueness error≤± 0.1mm.
Brief description
Fig. 1 and Fig. 2 is respectively the schematic diagram of measuring system of the present invention and installation site；
Fig. 3 and Fig. 4 is respectively measurement device of the present invention and principle schematic；
Reference is: 1- touch-screen, 2- numeral dial gauge, 3- mounting flange, 4- rotary flange, 5- antenna, 6- calculate
Machine, 10- expansion link, 11- mounting flange connecting plate, 12- rotary flange connecting plate.
Specific embodiment
Below from the principle of the present invention, the present invention is described in detail.
For digital dial gauge 2, it is by one, mobile for the capacitive grating of capacitive sensor variable to be referred to as data turn
The circuit box of parallel operation realizes digitlization and the transmission of mobile variable.Position signalling before digital percentage table transform senses for capacitance-grid type
The capacitive grating of device moves variable, and unit moves variable number for capacitive grating；Final display signal after digital conversion is for ease of using
Nominal mm unit, have a conversion coefficient relation between the two.This all has a detailed description in textbook and lot of documents.
In the same manner, the position signalling for touch-screen 1 contact point measures, and it is also to survey the position signalling of touch-screen contact point
Amount is referred to as, by one, digitlization and the transmission that additional circuit boards realize mobile variable.Touch-screen conversion before position signalling be
The sense of touch dot element position signalling of of touch-screen itself, unit fastens certain sense of touch dot element for certain plane coordinates；Through number
Word conversion after final display signal for ease of use certain plane coordinates fasten x, y-coordinate, its unit be mm unit.Two
Equally there is a conversion coefficient relation between person.With digital dial gauge except that passing through the basic unit of touch-screen both direction
Voltage field be all added on the conductive working face of glass by precision resistance network, have timesharing detection inner layer contacts point x after touch
The method of axle and y-axis magnitude of voltage records the position of touch point.The design of the digitlization of relevant variable and transmission circuit is existed with realization
All have a detailed description in textbook and lot of documents, the inventive point of non-invention.
The inventive point of the present invention: touch-screen is used as position sensor by (1) first；(2) first by touch-screen and numeral hundred
Divide table that the three-dimensional position measuring of realizing space contact point is used in combination；(3) first this technology is docked in horizontal vessel large flange
Successfully use during relative position monitoring.
Assembly of the invention is grouped into record portion by measuring part.Measurement part is divided into xy axle positioning and z-axis positioning, xy
Axle positioning is realized logical using the tapering contact of capacitance-grid type digital dial gauge in the sensing of touch-screen contact position by additional circuit boards
News parameter setting, the parsing scaling function of data, and then realize the instant positioning of xy coordinate and the display of sense of touch point position；Z-axis
Positioning then directly realizes instant positioning and the display of z-axis using measurement and the display function of capacitance-grid type dial gauge；By the two knot
Close, realize instant positioning and the display of xyz tri- coordinate.
Record part is then to be transmitted record data to computer by the wireless module of measurement part and antenna, by geometry
Resolve and realize original xyz triaxial coordinate data and two flange coaxiality (x, y), angle (depth of parallelism), corner, spatial joint clearance simultaneously
The display of the three-dimensional such as (z) relative position relation result.
The main contents of the present invention:
1st, using touch-screen contact position as x, y-coordinate, the stroke of capacitance-grid type digital dial gauge contact is as z coordinate；
2nd, the contact of dial gauge expansion link 10 is contacted measuring point and with touch screen combination as three-dimensional measurement as touch-screen
Assembly；
3rd, dial gauge sense of touch head and touch-screen are put with rotary flange connecting plate 12 by mounting flange connecting plate 11 respectively
On the relative flange of abutted flange 3 outer-diameter circular arc face, general recommendations touch-screen is arranged on mounting flange 3, digital dial gauge
It is fixed on rotary flange 4；Touch-screen is installed right with dial gauge sense of touch three, is respectively placed in surface, lower left, lower right equal
Even arrangement, fixed using Magnetic gauge stand or screw；
4th, respectively by the position signalling being obtained by dial gauge sense of touch head and touch-screen (x1, y1, z1, x2, y2, z2, x3, y3,
Z3) after digital conversion, warp is transmitted by wireless module and antenna 5 and processes display to computer 6.
Embodiment: in certain horizontal vessel large flange docking operation, due to the diameter of up to 3.2m of this vessel flange, end face of flange
It is provided with 2 road o type rubber seal, and end face of flange is in state perpendicular to the ground.If can not disposably accurately docking
Position, easily causes the damage of rubber seal and does over again, and cause the time delays of large equipment installation process, economic damage
Lose huge.For avoiding case above, in conventional work, all mode is checked using librarian use slide calliper rule and board foot measurement.Due to
The reason such as work high above the ground and measurement means and measurement position inconvenience (measurement position highest is in 4.5m at), cause measurement efficiency and
Certainty of measurement is difficult to meet and requires.After using the technology of the present invention, due to the improvement of measuring method, measurement efficiency and certainty of measurement
It is guaranteed, it is to avoid work high above the ground, achieve good implementation result.Touch-screen sense of touch dot spacing 0.21mm, by surveying
Amount flange 4 points of three coordinate position amounts up and down, have obtained flange docking operation intermediate gap and center position through mathematical conversion
Monitoring real time data, to realizing flange and accurately dock having played good action.Through using Mechanical Method correlation calibration, aligning measurement essence
Degree error≤± 0.42mm, gap and horizontal survey trueness error≤± 0.1mm.
Claims (5)
1. a kind of monitoring method of horizontal vessel large flange docking operation relative position it is characterised in that:
Touch-screen is combined the three-dimensional position of measurement space contact point by described monitoring method with digital dial gauge, wherein touch-screen
Serve as the positioning that position sensor realizes contact point x-axis and y-axis, digital dial gauge realizes contact point z-axis positioning, concrete monitoring step
Suddenly as follows:
1) measuring apparatus are installed
On one of flange of two horizontal vessel large flange of pre- docking, one or more touch-screens are installed, touch at each
Touch, on screen, wireless module and antenna be installed,
Digital dial gauge is installed in relative with touch-screen position on another one horizontal vessel large flange, on digital dial gauge
Wireless module and antenna are installed, and by the expansion link of digital dial gauge just to touch-screen；
2) measure
2.1) adjusting one of two horizontal vessel large flange flange makes the contact of the expansion link of digital dial gauge touch
Screen, after touch-screen is touched, by touch plan-position x a little, y-coordinate after digital conversion warp by wireless module and antenna biography
Transport to computer disposal to show,
2.2) after digital dial gauge touches touch-screen, by the axial location z coordinate of touch points after digital conversion through by wireless
Module and antenna transmission show to computer disposal.
2. horizontal vessel large flange docking operation relative position according to claim 1 monitoring method it is characterised in that:
Also include, according to plan-position coordinate a little and axial location coordinate will be touched, adjusting the position of two horizontal vessel large flange
Put and angle, until the two is fully aligned.
3. the monitoring method of horizontal vessel large flange docking operation relative position according to claim 1 and 2, its feature exists
In:
Described numeral dial gauge and touch-screen are respectively placed on the outer-diameter circular arc face of horizontal vessel large flange；Described touch-screen is installed
On mounting flange, described numeral dial gauge is fixed on rotary flange.
4. horizontal vessel large flange docking operation relative position according to claim 3 monitoring method it is characterised in that:
Described touch-screen is respectively 3 with the quantity of digital dial gauge, is respectively placed in surface, lower left, lower right and circumference
Uniformly.
5. horizontal vessel large flange docking operation relative position according to claim 4 monitoring method it is characterised in that:
Described touch-screen is all fixedly connected with horizontal vessel large flange by Magnetic gauge stand or screw with digital dial gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636489.1A CN104359366B (en) | 2014-11-12 | 2014-11-12 | Method for monitoring relative positions in horizontal large vessel flange butt-joint procedures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636489.1A CN104359366B (en) | 2014-11-12 | 2014-11-12 | Method for monitoring relative positions in horizontal large vessel flange butt-joint procedures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104359366A CN104359366A (en) | 2015-02-18 |
| CN104359366B true CN104359366B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410636489.1A Expired - Fee Related CN104359366B (en) | 2014-11-12 | 2014-11-12 | Method for monitoring relative positions in horizontal large vessel flange butt-joint procedures |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971902A (en) * | 2016-05-24 | 2016-09-28 | 安徽宜留电子科技有限公司 | Flange end face threaded axis connecting device of vertical centrifugal pump |
| CN112775625B (en) * | 2020-12-26 | 2022-04-05 | 哈尔滨工业大学 | On-site machining process and machining device for large flange |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338622A (en) * | 2010-07-22 | 2012-02-01 | 上海信慧电力科技有限公司 | Automatic centring measurement correction device for shafting of generating set |
| CN202582467U (en) * | 2012-05-31 | 2012-12-05 | 河南省煤气（集团）有限责任公司 | Stable-type centering dial indicator support |
| CN102967440A (en) * | 2012-11-21 | 2013-03-13 | 广东好帮手电子科技股份有限公司 | Device and method for detecting touch screen |
| CN202963972U (en) * | 2012-12-05 | 2013-06-05 | 山东双轮克莱德联合泵业有限公司 | Centering and aligning device for detecting coupling of water pump and motor |
| CN103604402A (en) * | 2013-11-22 | 2014-02-26 | 中国工程物理研究院总体工程研究所 | Interlamination diastrophism measurement device based on flexible touch screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7301351B2 (en) * | 2006-02-10 | 2007-11-27 | Milliken & Company | Printed capacitive sensor |
-
2014
- 2014-11-12 CN CN201410636489.1A patent/CN104359366B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338622A (en) * | 2010-07-22 | 2012-02-01 | 上海信慧电力科技有限公司 | Automatic centring measurement correction device for shafting of generating set |
| CN202582467U (en) * | 2012-05-31 | 2012-12-05 | 河南省煤气（集团）有限责任公司 | Stable-type centering dial indicator support |
| CN102967440A (en) * | 2012-11-21 | 2013-03-13 | 广东好帮手电子科技股份有限公司 | Device and method for detecting touch screen |
| CN202963972U (en) * | 2012-12-05 | 2013-06-05 | 山东双轮克莱德联合泵业有限公司 | Centering and aligning device for detecting coupling of water pump and motor |
| CN103604402A (en) * | 2013-11-22 | 2014-02-26 | 中国工程物理研究院总体工程研究所 | Interlamination diastrophism measurement device based on flexible touch screen |
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